Walking Club. The National Zoo in D.C. is the destination of the Walking Club of Arlington for seniors, 9:30 a.m. Cost is $3; newcomers welcome. Group leaves from Culpepper Garden Senior Center, 4435 N. Pershing Dr., 703-228-4403.

Music Group. The music appreciation group at Culpepper Garden Senior Center will meet to discuss works of Faust, 1:30 p.m., 4435 N. Pershing Drive, Arlington. No fee; newcomers welcome. Call 703-228-4403.

Art Exhibit. The "Impressionists by the Sea" exhibit at the Phillips Collection in the District is the destination of Arlington seniors. Exhibit includes 60 works by major 19th century French artists such as Monet and Renoir. Cost is $24. Call Arlington Senior Adult Travel, 703-228-4749. Registration required.

Computer Courses. Seniors can sign up for five basic computer courses at Lee Senior Center, 5722 Lee Highway, led by a skilled instructor and teen-age coaches, Call between 10 a.m.-noon for details, 703-228-6425. Cost is $20 for a textbook.

* Dining Out Club. Lunch is held the first Thursday of the month and dinner is on the second Wednesday at Lee Senior Center, 5722 Lee Highway. Call 703-228-0555. Newcomers welcome.

* The Northern Virginia Senior Olympics will celebrate its 25th anniversary, Sept. 15-27. Opening day ceremonies, Sat., Sept. 15, 10:30 a.m. will be followed by track and field events at the Thomas Jefferson Community Center, 3501 S. 2nd St., Arlington. A mini health fair will also be held on opening day from 9 a.m. to noon, sponsored by the Virginia Hospital Center.

Registration is $10 which includes one event; additional events are $1. Registration forms are available at senior centers or by calling 703-228-3600, ext. 9996. They can also be downloaded from www.novaseniorolympics.com. Registration deadline is Sept. 1.

* Golf. The 2007 Arlington Senior Golf Club season begins Tues., Apr. 3 at the Old Hickory Golf Course, Woodbridge. The group plays on Tuesdays and Thursdays at various golf courses in Northern Virginia. Seniors interested in joining should call Karl VanNewkirk, 703-536-5916.

* Volunteers. Arlington County is hosting the opening ceremonies and track and field events on Sat., Sept. 15 for the 2007 Northern Virginia Senior Olympics at the Thomas Jefferson Community Center, 3501 S. 2nd St. Volunteers are needed for a cheerleading squad to support senior athletes from all parts of Northern Virginia. Contact Jennifer Collins, fitness coordinator, Office of Senior Adult Programs, 703-228-4745.* English as a Second Language (ESL) classes for seniors offered every Monday, 11 a.m., Langston-Brown Senior Center, 2121 N. Culpeper St., Arlington. No fee; newcomers welcome. Call to register, 703-228-5321.